New G29SF Owner in NC

Greetings from NC! I am new to this forum, but not to the Glock family. I just purchased a new Gen3 G29sf on Friday so that my 20 year old Gen2 G19 finally has some company!! Mrs. Claus left me a chunk of green instead of the usual lump of coal this year, although I believe her intentions were so that she could assume ownership of my beloved G19! I do need some guidance from the 10mm crowd as I have a few questions regarding break-in and ammo and probably a couple of other things I haven't thought of. Any and all help/advice would be greatly appreciated.

I got my LGS to throw in 2 of the pinky extensions to sweeten the deal since he was out of ammo...BIG SURPRISE. I have 200 rounds of Underwood 180gr FMJ on the way and I cannot wait for them to arrive. I figure a couple hundred of his bad boys down range will tell me everything I need to know about this gun